Hello,
The answer is "28 neutrons".
Reason:
The element Chromium has:
Protons:24
Neutrons:28
Electrons:24
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit
A mole is defined to be like particales of a substance
There are 3 significant digits in 5.40.
(To help understand): Sig figs are just a way of simplifying a number.
His the answer I hope it helps